%0 Report %A Klein, Tobias J. %A Salm, Martin %A Upadhyay, Suraj %T The Response to Dynamic Incentives in Insurance Contracts with a Deductible: Evidence from a Differences-in-Regression-Discontinuities Design %D 2020 %8 2020 Mar %I Institute of Labor Economics (IZA) %C Bonn %7 IZA Discussion Paper %N 13108 %U https://www.iza.org/index.php/publications/dp13108 %X We develop a new approach to quantify how patients respond to dynamic incentives in health insurance contracts with a deductible. Our approach exploits two sources of variation in a differences-in-regression-discontinuities design: deductible contracts reset at the beginning of the year, and cost-sharing limits change over the years. Using rich claims-level data from a large Dutch health insurer we find that individuals are forward-looking. Changing dynamic incentives by increasing the deductible by €100 leads to a reduction in healthcare spending of around 3% on the first days of the year and 6% at the annual level. The response to dynamic incentives is an important part of the overall effect of cost-sharing schemes on healthcare expenditures- much more so than what the previous literature has suggested. %K health insurance %K patient cost-sharing %K dynamic incentives